A couple of the maybe two dozen Lettered Olive Snail shells I found today.
Lettered Olive Snails are carnivorous. They spend their time mostly burrowing through the sand looking for bivalves, worms, clams, other snails, etc. They use their foot for tunneling just under the surface of the sand. When they find a clam they sort of surround the clam and suffocate it. When the shell opens because the animal dies, the snail takes advantage.
I don't find many of these, but like most shells I just toss them back after I get a few photos. The smaller hermit crabs like the Thinstripe and Longwrist use these smaller shells so I usually leave them on the beach.
